CN208353243U - A kind of multi-mode motor switching on/off circuit - Google Patents
A kind of multi-mode motor switching on/off circuit Download PDFInfo
- Publication number
- CN208353243U CN208353243U CN201721929822.3U CN201721929822U CN208353243U CN 208353243 U CN208353243 U CN 208353243U CN 201721929822 U CN201721929822 U CN 201721929822U CN 208353243 U CN208353243 U CN 208353243U
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- Prior art keywords
- frequency
- contactor
- gear
- normally opened
- relay
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- Control Of Multiple Motors (AREA)
Abstract
The utility model provides a kind of multi-mode motor switching on/off circuit, including start and stop relay, frequency converter, industrial frequency AC contactor, frequency-changing AC contactor, electrothermal relay, converting operation relay, third gear selection switch；Electric motor a-road-through overtemperature relay, industrial frequency AC contactor are connected with three phase mains, and another way is connected by frequency-changing AC contactor, frequency converter with the three phase mains；The third gear selection switch includes frequency conversion gear, power frequency gear, emergency gear；The emergency gear is connected by the control terminal of industrial frequency AC contactor, normally-closed contact with zero curve；The power frequency gear is connected by normally opened contact, the control terminal of industrial frequency AC contactor, normally-closed contact with zero curve；The frequency conversion gear is connected by the control terminal of normally opened contact, frequency-changing AC contactor with zero curve；The normally opened contact is in parallel with normally opened contact.
Description
Technical field
The utility model relates to a kind of electric machines control technology, especially a kind of multi-mode motor switching on/off circuit.
Background technique
In many occasions, motor does not allow to shut down, and traditional motor starting or stopping control circuit generally takes both of which: frequency conversion
Mode and power frequency mode can switch to power frequency system when frequency converter breaks down.If but control start and stop relay
For a long time using failure also would tend to occur, when start and stop relay breaks down, power frequency system and frequency conversion system are not
It can use, make troubles in this way to system use.
Therefore, a kind of circuit for controlling motor of more start and stop modes of urgent need.
Summary of the invention
In view of the deficiencies of the prior art, the utility model technical issues that need to address are to provide a kind of multi-mode motor and open
Power failure road.
In order to solve the above technical problems, the utility model provides a kind of multi-mode motor switching on/off circuit comprising start and stop after
Electric appliance (R1), frequency converter, industrial frequency AC contactor (M1), frequency-changing AC contactor (M2), electrothermal relay (0/L1), converting operation
Relay (R2), third gear selection switch；Electric motor a-road-through overtemperature relay (0/L1), industrial frequency AC contactor (M1) and three
Phase power supply is connected, and another way is connected by frequency-changing AC contactor (M2), frequency converter with the three phase mains；The start and stop relay
Device (R1) includes normally opened contact (R1-1), normally opened contact (R1-2), and the converting operation relay (R2) includes normally opened contact
(R2-1), the electrothermal relay (0/L1) includes normally-closed contact (0/L1-1)；The third gear selection switch includes three gears: being become
Frequency gear, power frequency gear, emergency gear；Described emergency gear one end is connected with single phase poaer supply, and the other end is connect by industrial frequency AC
The control terminal of tentaculum (M1), normally-closed contact (0/L1-1) are connected with zero curve；Power frequency gear one end is connected with single phase poaer supply, separately
One end is connected by normally opened contact (R1-1), the control terminal of industrial frequency AC contactor (M1), normally-closed contact (0/L1-1) with zero curve；
Frequency conversion gear one end is connected with single phase poaer supply, and the other end passes through normally opened contact (R1-2), frequency-changing AC contactor (M2)
Control terminal is connected with zero curve；The normally opened contact (R2-1) is in parallel with normally opened contact (R1-2), the one end normally opened contact (R2-1)
It is connected with the frequency conversion gear, the other end is connected with the control terminal of frequency-changing AC contactor (M2).
It further include miniature circuit breaker as a kind of further improvement of multi-mode motor switching on/off circuit of the utility model
(MCCB), the industrial frequency AC contactor (M1) and the frequency converter pass through the miniature circuit breaker (MCCB) and the three-phase electricity
Source is connected, and the third gear selection switch is connected also by the miniature circuit breaker (MCCB) with single phase poaer supply.
It further include miniature circuit breaker as a kind of further improvement of multi-mode motor switching on/off circuit of the utility model
(WCB1), the industrial frequency AC contactor (M1) and the frequency converter pass through the miniature circuit breaker (WCB1) afterwards with it is described miniature
Breaker (MCCB) is connected.
It further include miniature circuit breaker as a kind of further improvement of multi-mode motor switching on/off circuit of the utility model
(WCB2), the third gear selection switch is connected by the miniature circuit breaker (WCB2) with the miniature circuit breaker (MCCB).
It further include emergency button (EM1) as a kind of further improvement of multi-mode motor switching on/off circuit of the utility model,
The third gear selection switch is connected by the emergency button (EM1) with the miniature circuit breaker (MCCB).
It further include frequency converter failure relay as a kind of further improvement of multi-mode motor switching on/off circuit of the utility model
Device (R3), the frequency converter failure relay (R3) include normally-closed contact (R3-1), the control of the frequency-changing AC contactor (M2)
End processed is connected by the normally-closed contact (R3-1) with zero curve.
As a kind of further improvement of multi-mode motor switching on/off circuit of the utility model, the start and stop relay (R1) is also
Including normally opened contact (R1-3), the frequency-changing AC contactor (M2) includes normally opened contact (M2-1), the normally opened contact (R1-
3) it, is connected on the Frequency Converter Control line line bank after normally opened contact (M2-1) series connection for controlling the start and stop of frequency converter.
Compared with prior art, the utility model increases third gear selection switch, increases motor emergency system, meets an urgent need
Gear can be directly connected to industrial frequency AC contactor (M1), in frequency conversion system, the non-serviceable situation of power frequency system, can use
Emergency system starts motor, increases the start stop mode of motor.
Detailed description of the invention
It is more particularly described by the preferred embodiment in the utility model shown in the drawings, the above and other mesh of the utility model
, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows this purport.
Fig. 1 is a kind of electrical block diagram of multi-mode motor switching on/off circuit of the utility model.
Fig. 2 is the wiring schematic diagram of the control line line bank of frequency converter shown in Fig. 1.
Specific embodiment
For the ease of understanding the utility model, below with reference to relevant drawings to being originally described more fully.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, the technology of all technical and scientific terms used herein and the technical field for belonging to this
The normally understood meaning of personnel is identical.Term used in book described herein is intended merely to the mesh of description specific embodiment
, it is not intended that in limitation the utility model.Term " and or " used herein includes one or more relevant institute's lists
Any and all combinations of purpose.
With reference to Fig. 1-2, a kind of multi-mode motor switching on/off circuit of the present embodiment comprising start and stop relay (R1), frequency converter,
Industrial frequency AC contactor (M1), frequency-changing AC contactor (M2), electrothermal relay (0/L1), converting operation relay (R2), third gear
Selection switch (SW1).This multi-mode motor switching on/off circuit is used to control the start and stop of electric motor, and the electric motor passes through all the way
Electrothermal relay (0/L1), industrial frequency AC contactor (M1) are connected with three phase mains, another way by frequency-changing AC contactor (M2),
Frequency converter is connected with the three phase mains.The start and stop relay (R1) includes normally opened contact (R1-1), normally opened contact (R1-2),
The converting operation relay (R2) includes normally opened contact (R2-1), and the electrothermal relay (0/L1) includes normally-closed contact (0/L1-
1).It includes three gears that the third gear selection, which is opened (SW1) and closed: frequency conversion gear, power frequency gear, emergency gear.The emergency gear
One end is connected with single phase poaer supply, and the other end passes through the control terminal of industrial frequency AC contactor (M1), normally-closed contact (0/L1-1) and zero
Line is connected；Power frequency gear one end is connected with single phase poaer supply, and the other end passes through normally opened contact (R1-1), industrial frequency AC contactor
(M1) control terminal, normally-closed contact (0/L1-1) are connected with zero curve.Frequency conversion gear one end is connected with single phase poaer supply, the other end
It is connected by the control terminal of normally opened contact (R1-2), frequency-changing AC contactor (M2) with zero curve.The normally opened contact (R2-1) with
Normally opened contact (R1-2) is in parallel, which is connected with the frequency conversion gear, and the other end connects with frequency-changing AC
The control terminal of tentaculum (M2) is connected.
The selection switch of this circuit is provided with Three models: variable mode, power frequency mode, contingency mode.Variable mode is
Use frequency conversion start and stop electric motor.Power frequency mode is using power frequency start and stop electric motor.Contingency mode is not have to start and stop relay
(R1) it controls, direct power frequency start and stop electric motor.
When starting variable mode, third gear selection switch is in frequency conversion gear, start and stop relay (R1) closure, and controls frequency conversion
A.C. contactor (M2) work once electrified, then the start and stop by normally opened contact (R1-3), normally opened contact (M2-1) control frequency converter.
When starting power frequency mode, third gear selection switch is in power frequency gear, start and stop relay (R1) closure, and controls power frequency
A.C. contactor (M1) work once electrified directly connects electric motor coil energization start and stop motor horse by industrial frequency AC contactor (M1)
It reaches.
When starting contingency mode, third gear selection switch is in emergency gear, direct power frequency start and stop electric motor.
This circuit increases third gear selection switch (SW1), increases motor emergency start stop system, emergency gear can be direct
It connects industrial frequency AC contactor (M1), in frequency conversion system, the non-serviceable situation of power frequency system, can be started using emergency system
Motor increases the start stop mode of motor.
It in a further preferred embodiment, further include miniature circuit breaker (MCCB), the industrial frequency AC contactor (M1)
Pass through the miniature circuit breaker (MCCB) with the frequency converter to be connected with the three phase mains, the third gear selection switch (SW1)
It is connected also by the miniature circuit breaker (MCCB) with single phase poaer supply.
In a further preferred embodiment, the multi-mode motor switching on/off circuit further includes miniature circuit breaker (WCB1),
The industrial frequency AC contactor (M1) and the frequency converter pass through the miniature circuit breaker (WCB1) afterwards with the miniature circuit breaker
(MCCB) it is connected.
In a further preferred embodiment, the multi-mode motor switching on/off circuit further includes miniature circuit breaker (WCB2),
The third gear selection switch is connected by the miniature circuit breaker (WCB2) with the miniature circuit breaker (MCCB).
In a further preferred embodiment, the multi-mode motor switching on/off circuit further includes emergency button (EM1), described
Third gear selection switch is connected by the emergency button (EM1) with the miniature circuit breaker (MCCB).
In a further preferred embodiment, the multi-mode motor switching on/off circuit further includes frequency converter failure relay
(R3), the frequency converter failure relay (R3) includes normally-closed contact (R3-1), the control of the frequency-changing AC contactor (M2)
End is connected by the normally-closed contact (R3-1) with zero curve.
In a further preferred embodiment, start and stop relay (R1) described in the multi-mode motor switching on/off circuit further includes
Normally opened contact (R1-3), the frequency-changing AC contactor (M2) include normally opened contact (M2-1), the normally opened contact (R1-3), often
It is connected on the Frequency Converter Control line line bank after opening contact (M2-1) series connection for controlling the start and stop of frequency converter.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of utility model above described embodiment only expresses, the description thereof is more specific and detailed, but
It cannot be understood as the limitations to utility model patent range.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (7)
1. a kind of multi-mode motor switching on/off circuit, it is characterised in that including start and stop relay (R1), frequency converter, industrial frequency AC contact
Device (M1), frequency-changing AC contactor (M2), electrothermal relay (0/L1), converting operation relay (R2), third gear selection switch
(SW1)；Electric motor a-road-through overtemperature relay (0/L1), industrial frequency AC contactor (M1) are connected with three phase mains, another way
It is connected by frequency-changing AC contactor (M2), frequency converter with the three phase mains；The start and stop relay (R1) includes normally opened touching
Point (R1-1), normally opened contact (R1-2), the converting operation relay (R2) include normally opened contact (R2-1), the electrothermal relay
(0/L1) includes normally-closed contact (0/L1-1)；The third gear selection switch (SW1) includes three gears: frequency conversion gear, line-frequency gear
Position, emergency gear；Described emergency gear one end is connected with single phase poaer supply, and the other end passes through the control of industrial frequency AC contactor (M1)
End, normally-closed contact (0/L1-1) are connected with zero curve；Power frequency gear one end is connected with single phase poaer supply, and the other end passes through normally opened touching
Point (R1-1), the control terminal of industrial frequency AC contactor (M1), normally-closed contact (0/L1-1) are connected with zero curve；The frequency conversion gear one
End is connected with single phase poaer supply, control terminal and the zero curve phase that the other end passes through normally opened contact (R1-2), frequency-changing AC contactor (M2)
Even；The normally opened contact (R2-1) is in parallel with normally opened contact (R1-2), the normally opened contact one end (R2-1) and the frequency conversion gear
It is connected, the other end is connected with the control terminal of frequency-changing AC contactor (M2).
2. a kind of multi-mode motor switching on/off circuit as described in claim 1, it is characterised in that it further include miniature circuit breaker (MCCB),
The industrial frequency AC contactor (M1) passes through the miniature circuit breaker (MCCB) with the frequency converter and is connected with the three phase mains,
The third gear selection switch (SW1) is connected also by the miniature circuit breaker (MCCB) with single phase poaer supply.
3. a kind of multi-mode motor switching on/off circuit as claimed in claim 2, it is characterised in that it further include miniature circuit breaker (WCB1),
The industrial frequency AC contactor (M1) and the frequency converter pass through the miniature circuit breaker (WCB1) afterwards with the miniature circuit breaker
(MCCB) it is connected.
4. a kind of multi-mode motor switching on/off circuit as claimed in claim 2, it is characterised in that it further include miniature circuit breaker (WCB2),
The third gear selection switch (SW1) is connected by the miniature circuit breaker (WCB2) with the miniature circuit breaker (MCCB).
5. a kind of multi-mode motor switching on/off circuit as claimed in claim 2, it is characterised in that further include emergency button (EM1), institute
Third gear selection switch (SW1) is stated to be connected by the emergency button (EM1) with the miniature circuit breaker (MCCB).
6. a kind of multi-mode motor switching on/off circuit as described in claim 1, it is characterised in that further include frequency converter failure relay
(R3), the frequency converter failure relay (R3) includes normally-closed contact (R3-1), the control of the frequency-changing AC contactor (M2)
End is connected by the normally-closed contact (R3-1) with zero curve.
7. a kind of multi-mode motor switching on/off circuit as described in claim 1, it is characterised in that the start and stop relay (R1) is also wrapped
It including normally opened contact (R1-3), the frequency-changing AC contactor (M2) includes normally opened contact (M2-1), the normally opened contact (R1-3),
It is connected to after normally opened contact (M2-1) series connection on the control line bank of the frequency converter for controlling the start and stop of frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929822.3U CN208353243U (en) | 2017-12-31 | 2017-12-31 | A kind of multi-mode motor switching on/off circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929822.3U CN208353243U (en) | 2017-12-31 | 2017-12-31 | A kind of multi-mode motor switching on/off circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208353243U true CN208353243U (en) | 2019-01-08 |
Family
ID=64873080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721929822.3U Expired - Fee Related CN208353243U (en) | 2017-12-31 | 2017-12-31 | A kind of multi-mode motor switching on/off circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208353243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959441A (en) * | 2017-12-31 | 2018-04-24 | 广州市大弘自动化科技有限公司 | A kind of multi-mode motor switching on/off circuit |
-
2017
- 2017-12-31 CN CN201721929822.3U patent/CN208353243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959441A (en) * | 2017-12-31 | 2018-04-24 | 广州市大弘自动化科技有限公司 | A kind of multi-mode motor switching on/off circuit |
| CN107959441B (en) * | 2017-12-31 | 2024-05-31 | 永光鑫润(北京)电子有限责任公司 | Multi-mode motor power-on/off circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20201231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |